switchablecontrol

noun
UK /ˈswɪtʃəbl kənˈtrəʊl/
US /ˈswɪtʃəbl kənˈtroʊl/

a button or switch that you can turn on and off.

The lamp has a switchable control on its cord.


OTHER MEANINGS

2. a setting in a program that can be turned on or off.

You can find the switchable control in the settings menu.

3. a device that lets you change between two modes.

The fan's switchable control changes it from low to high.

4. a way to change something from one state to another.

The switchable control lets the robot go from walking to rolling.